:root{
  --bg:#07111f;
  --panel:#0d1d31;
  --panel2:#10243d;
  --text:#ffffff;
  --muted:#b9c7d6;
  --accent:#00d4ff;
  --danger:#ff4d6d;
  --success:#2ee59d;
  --border:rgba(255,255,255,.12);
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:linear-gradient(135deg,#07111f,#0b1e35);color:var(--text)}
a{color:inherit;text-decoration:none}
.admin-wrap{min-height:100vh;display:flex}
.sidebar{width:250px;background:rgba(4,10,20,.88);border-right:1px solid var(--border);padding:24px;position:fixed;inset:0 auto 0 0}
.brand{font-weight:900;font-size:18px;letter-spacing:1px;margin-bottom:30px;color:#fff}
.sidebar a{display:block;padding:13px 14px;border-radius:12px;color:var(--muted);margin-bottom:8px;font-weight:700}
.sidebar a:hover,.sidebar a.active{background:rgba(0,212,255,.12);color:var(--accent)}
.main{margin-left:250px;width:calc(100% - 250px);padding:32px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.topbar h1{margin:0;font-size:32px}
.card{background:rgba(255,255,255,.08);border:1px solid var(--border);border-radius:22px;padding:24px;box-shadow:0 20px 50px rgba(0,0,0,.25);margin-bottom:20px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.stat strong{display:block;font-size:34px;color:var(--accent)}
.stat span{color:var(--muted)}
.btn{display:inline-block;border:0;border-radius:12px;padding:12px 16px;background:var(--accent);color:#07111f;font-weight:900;cursor:pointer}
.btn.secondary{background:rgba(255,255,255,.1);color:#fff;border:1px solid var(--border)}
.btn.danger{background:var(--danger);color:#fff}
.table{width:100%;border-collapse:collapse;overflow:hidden;border-radius:18px}
.table th,.table td{text-align:left;padding:14px;border-bottom:1px solid var(--border);vertical-align:top}
.table th{color:var(--accent);font-size:13px;text-transform:uppercase;letter-spacing:1px}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
label{display:block;color:var(--muted);font-weight:700;margin-bottom:8px}
input,textarea,select{width:100%;padding:13px 14px;border-radius:12px;border:1px solid var(--border);background:rgba(255,255,255,.08);color:#fff;outline:none}
textarea{min-height:130px;resize:vertical}
.help{color:var(--muted);font-size:14px;line-height:1.6}
.notice{padding:14px 16px;border-radius:14px;margin-bottom:18px;background:rgba(46,229,157,.12);border:1px solid rgba(46,229,157,.3);color:#d7ffee}
.error{background:rgba(255,77,109,.12);border-color:rgba(255,77,109,.3);color:#ffd7df}
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{width:100%;max-width:430px;background:rgba(255,255,255,.08);border:1px solid var(--border);border-radius:26px;padding:32px;box-shadow:0 25px 70px rgba(0,0,0,.35)}
.login-card h1{margin-top:0}
@media(max-width:800px){.sidebar{position:static;width:100%;}.admin-wrap{display:block}.main{margin-left:0;width:100%;padding:18px}.grid,.form-grid{grid-template-columns:1fr}.topbar{display:block}.table{font-size:14px}}